TechViz XL is a software that instantaneously turns a pack of common PCs into a highly powerful multi-screen visualization system or a CAVE. No specific application developpement is needed, TechViz enables unmodified OpenGL API applications to display in realtime on multiple screens. Moreover, TechViz Turbo uses a cluster of PC to accelerate the 3D display of an existing OpenGL API application. SIGGRAPH 2004 booth #1930